Spring is definitely in the air. Or so says Derek Blasberg, our editor at large and the man behind our weekly Mr. Blasberg's Best-Dressed List, who says he was inspired by the eccentric mix of bright, funky ensembles he spotted both on the red carpet and off. Some of his favorites? Katie Holmes hitting the streets of New York in a full-body floral print, with daughter Suri looking even more adorable in a similar flowered getup; Rihanna taking a twirl on London's Tube in a Margiela shirt that was so hot it was literally flaming; and, of course, Kate Moss, whose quintessentially British cool has been a street-style staple since she was a new face in fashion. While real-life style definitely had a moment this week, the red carpets were hardly neglected. On the flirtier end of the spectrum, Emma Roberts tapped into her sultry side in a strapless Yves Saint Laurent jumpsuit at a YSL-sponsored Metropolitan Opera gala in New York, and Irina Shayk stepped out at the Jeffrey Fashion Cares fundraiser on the Intrepid aircraft carrier in the Hudson River in a supersexy, yet somewhat demure blue cocktail dress. And on the more festive side, there was Agyness Deyn wearing a fun shift dress from her friend Henry Holland's fall runway; Dree Hemingway in a flowing YSL pantsuit; and Chloë Sevigny in Proenza Schouler's quirky sheer top and tiered skirt at the Jeffrey Fashion Cares event, of which she was honorary chairperson. The weather is getting warmer, it seems. And so are some of Derek's favorite fashionable frocks.

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